<p>Upgrade <code>RHEL:8</code> <code>libgs</code> to version 0:9.27-11.el8 or higher.<br>This issue was patched in <code>RHSA-2023:7053</code>.</p>

Out-of-bounds Write Affecting libgs package, versions <0:9.27-11.el8

Threat Intelligence

0.53% (78^th percentile)

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Snyk ID SNYK-RHEL8-LIBGS-5413824
published 5 Apr 2023
disclosed 31 Mar 2023

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Introduced: 31 Mar 2023

CVE-2023-28879 Open this link in a new tab CWE-787 Open this link in a new tab

How to fix?

Upgrade RHEL:8 libgs to version 0:9.27-11.el8 or higher.
This issue was patched in RHSA-2023:7053.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgs package and not the libgs package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

In Artifex Ghostscript through 10.01.0, there is a buffer overflow leading to potential corruption of data internal to the PostScript interpreter, in base/sbcp.c. This affects BCPEncode, BCPDecode, TBCPEncode, and TBCPDecode. If the write buffer is filled to one byte less than full, and one then tries to write an escaped character, two bytes are written.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

High
Availability (A)

High

Out-of-bounds Write Affecting libgs package, versions <0:9.27-11.el8

Severity

Based on Red Hat Enterprise Linux security rating